Home / 18,257.58-27,387.99-5,110.11

Finding the Fourth Proportional to 18,257.58, 27,387.99 and 5,110.11

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Solution

The fourth proportional to 18,257.58, 27,387.99 and 5,110.11 is: 7,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.58 : 27,387.99 = 5,110.11 : x
  2. Step 2: Convert to fraction form
    18,257.58/27,387.99 = 5,110.11/x
  3. Step 3: Cross multiply
    18,257.58x = 27,387.99 × 5,110.11
  4. Step 4: Simplify right side
    18,257.58x = 139,955,641.58
  5. Step 5: Solve for x
    x = 139,955,641.58/18,257.58
  6. Step 6: Final answer
    x = 7,665.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.